Go to homepageCyberStrike

Menu

Star on GitHub · 3.2k
Sign inDownload

CVE-2024-40972

5.5 · MEDIUM

In the Linux kernel, the following vulnerability has been resolved: ext4: do not create EA inode under buffer lock ext4_xattr_set_entry() creates new EA inodes while holding buffer lock on the ex…

Published Jul 12, 2024CWE-667EPSS 0.22%

Overview

CVE-2024-40972 is a medium-severity vulnerability. It was published on July 12, 2024 and has a CVSS 3.1 base score of 5.5 (MEDIUM).

This vulnerability has a CVSS 3.1 base score of 5.5, rated MEDIUM. It requires local or adjacent network access to exploit. Some level of privileges is required for exploitation.

Technical description

In the Linux kernel, the following vulnerability has been resolved:

ext4: do not create EA inode under buffer lock

ext4_xattr_set_entry() creates new EA inodes while holding buffer lock

on the external xattr block. This is problematic as it nests all the

allocation locking (which acquires locks on other buffers) under the

buffer lock. This can even deadlock when the filesystem is corrupted and

e.g. quota file is setup to contain xattr block as data block. Move the

allocation of EA inode out of ext4_xattr_set_entry() into the callers.

Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

References

Refgit.kernel.org/stable/c/0752e7fb549d90c33b4d4186f11cfd25a556d1ddRefgit.kernel.org/stable/c/0a46ef234756dca04623b7591e8ebb3440622f0bRefgit.kernel.org/stable/c/111103907234bffd0a34fba070ad9367de058752Refgit.kernel.org/stable/c/737fb7853acd5bc8984f6f42e4bfba3334be8ae1Refgit.kernel.org/stable/c/0a46ef234756dca04623b7591e8ebb3440622f0bRefgit.kernel.org/stable/c/111103907234bffd0a34fba070ad9367de058752Reflists.debian.org/debian-lts-announce/2025/01/msg00001.html

How CyberStrike helps

Frequently asked questions

What is CVE-2024-40972?

CVE-2024-40972 is a medium-severity vulnerability. It was published on July 12, 2024 and has a CVSS 3.1 base score of 5.5 (MEDIUM).

How severe is CVE-2024-40972?

This vulnerability has a CVSS 3.1 base score of 5.5, rated MEDIUM. It requires local or adjacent network access to exploit. Some level of privileges is required for exploitation.

How do I fix or remediate CVE-2024-40972?

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2024-40972?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2024-40972 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

Related MEDIUM CVEs from 2024

View all
Browse by year2026202520242023202220212020201920182017201620152014201320122011201020092008200720062005200420032002200120001999